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Laser-frequency locking techniques for high-sensitivity strain measurements by high-birefringence fiber Bragg gratings and resonators

  Articoli su Riviste JCR/ISI  (anno 2007)

Autori:  Salza M., Gagliardi G., Di Maio A., Ferraro P., De Natale P., Chehura E., Tatam R

Affiliazione Autori:  CNR - Istituto Nazionale di Ottica Applicata, Via Campi Flegrei 34, 80078 Napoli, Italy; Centre for Photonics and Optical Engineering, School of Engineering, Cranfield University, Bedford MK43 OAL, UK

Riassunto:  A new approach to simultaneously interrogate orthogonal axes of single Fiber-Bragg-Gratings (FBGs) and FBG-Fabry Perot resonator sensors fabricated in linearly highly birefiringent (HiBi) fibre is presented. Novel interrogation techniques of single Fiber-Bragg-Gratings (FBGs) and FBG-resonator sensors are presented. For a single FBG, we combined a laser-modulation technique to an electronic feedback loop that keeps the source always frequency locked to one peak of the sensor

Rivista/Giornale:  PROCEEDINGS OF SPIE
Volume n.:  6619      Pagine da: 661915-1  a: 661915-4
DOI: 10.1117/12.738379


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